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                    1.2020-01-12-SpringBoot属性读取方式介绍
            
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                    2.2020-01-12-使用spring boot+mybatis plus快速入门
            
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                    3.2020-01-13-spring-initMethod-destoryMethod
            
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                    4.2020-01-13-spring循环依赖
            
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                    5.2020-01-13-spring源码随记
            
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                    6.2020-01-13-自定义mini-spring
            
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                    1.2019-12-30-webscoket-springboot通信
            
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                    [linux]
            
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                    1.2019-12-28-Linux常用命令和快捷键
            
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                    2.2019-12-28-从零到一环境安装
            
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                                <p>arthas&#x662F;&#x963F;&#x91CC;&#x5F00;&#x6E90;&#x7684;&#x7EBF;&#x4E0A;&#x6027;&#x80FD;&#x8C03;&#x4F18;&#x5229;&#x5668;,&#x6709;&#x4E2D;&#x6587;&#x6587;&#x6863;&#x53EF;&#x4F9B;&#x53C2;&#x8003;&#x5B66;&#x4E60;,<a href="https://alibaba.github.io/arthas/install-detail.html" target="_blank">https://alibaba.github.io/arthas/install-detail.html</a></p>
<h2 id="&#x63D0;&#x4EA4;github-commit">&#x63D0;&#x4EA4;github commit</h2>
<p>&#x6DFB;&#x52A0;&#x6267;&#x884C;&#x5386;&#x53F2;&#x547D;&#x4EE4;&#x7684;&#x652F;&#x6301;,&#x4F7F;&#x7528;&#x53F9;&#x53F7;+&#x5386;&#x53F2;&#x547D;&#x4EE4;&#x6570;&#x5B57;,&#x7B26;&#x5408;linux&#x7528;&#x6237;&#x7684;shell&#x4E60;&#x60EF;</p>
<p>&#x7C7B; com.taobao.arthas.core.shell.system.impl.JobControllerImpl#createProcess
&#x6DFB;&#x52A0;&#x652F;&#x6301;&#x6267;&#x884C;&#x5386;&#x53F2;&#x547D;&#x4EE4;&#x7684;shell&#x529F;&#x80FD;</p>
<p>git checkout -b arthas_add_exec_histroy_command
git add core/src/main/java/com/taobao/arthas/core/shell/system/impl/JobControllerImpl.java
git commit -m &quot;&#x6DFB;&#x52A0;&#x53F9;&#x53F7;&#x6267;&#x884C;&#x5386;&#x53F2;&#x547D;&#x4EE4;&#x529F;&#x80FD;,&#x4F8B;&#x5B50;:!33&quot;</p>
<pre><code class="lang-java">&#x4FEE;&#x6539;&#x6DFB;&#x52A0;&#x82F1;&#x6587;&#x6CE8;&#x91CA;
 com.taobao.arthas.core.shell.system.impl.JobControllerImpl#createProcess
 /**
     * Try to create a process from the command line tokens.
     *
     * @param line           the command line tokens
     * @param commandManager command manager
     * @param jobId          job id
     * @param term           term
     * @return the created process
     */
    private Process createProcess(List&lt;CliToken&gt; line, InternalCommandManager commandManager, int jobId, Term term) {
        try {
            ListIterator&lt;CliToken&gt; tokens = line.listIterator();
            while (tokens.hasNext()) {
                CliToken token = tokens.next();
                 //if the input string start with &quot;!&quot;
                if (token.isText() &amp;&amp; (token.value().startsWith(EXCLAMATION_MARK))) {
                    //wipe off the  &quot;!&quot; &amp; blank
                    String historyId = token.value().substring(1).trim();
                    //obtain commandName from history list
                    String commandName = getCommandName( term, Integer.valueOf(historyId));

                    // if the history command still contains the &quot;!&quot; , such as &quot;!!40&quot;
                    while (commandName!=null &amp;&amp; commandName.startsWith(EXCLAMATION_MARK)){
                        commandName= getCommandName( term,Integer.valueOf(commandName.substring(1)) );
                    }

                    //command with args eg: 33 sc com.taobao.arthas.core.shell.system.impl.JobControllerImpl
                    if(commandName.contains(&quot;\u0020&quot;)){
                        return createProcess(CliTokens.tokenize(commandName),commandManager,jobId,term);
                    }

                    //command with out args, obtain command Object from the CommandManager
                    Command command = commandManager.getCommand(commandName);
                    if (command != null) {
                        //create the CommandProcess
                        return createCommandProcess(command, tokens, jobId, term);
                    } else {
                        throw new IllegalArgumentException(commandName + &quot;: history command not found&quot;);
                    }
                }
                if (token.isText()) {
                    Command command = commandManager.getCommand(token.value());
                    if (command != null) {
                        return createCommandProcess(command, tokens, jobId, term);
                    } else {
                        throw new IllegalArgumentException(token.value() + &quot;: command not found&quot;);
                    }
                }
            }
            throw new IllegalArgumentException();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

 /**
     * obtain commandName from history list
     * @param termObject  terminal Object
     * @param historyId the number input after the &quot;!&quot;
     * @return CommandName
     */
    private String getCommandName(Term termObject, int historyId) {
        if (termObject != null &amp;&amp; termObject instanceof TermImpl) {
            TermImpl term = (TermImpl) termObject;
            Readline readline = term.getReadline();
            List&lt;int[]&gt; history = readline.getHistory();
            StringBuilder sb = new StringBuilder();
            int size = history.size();
            if(historyId&gt;size){
                throw new IllegalArgumentException(historyId+&quot; is to big, please input the right number,less than &quot;+size);
            }
            int[] line = history.get(size - historyId);
            Helper.appendCodePoints(line, sb);
            return sb.toString().trim();
        }

        return null;
    }


  &#x4E2D;&#x6587;&#x6CE8;&#x91CA;  
    //&#x5982;&#x679C;&#x662F;&#x53F9;&#x53F7;&#x5F00;&#x5934;
if (token.isText() &amp;&amp; (token.value().startsWith(&quot;!&quot;))) {
    //throw new IllegalArgumentException(token.value() + &quot;: find History Command&quot;);
    String historyId = token.value().substring(1); //&#x53BB;&#x9664;&#x7B2C;&#x4E00;&#x4E2A;&#x53F9;&#x53F7;
    String commandName = getCommandName( term, historyId).trim();
   // throw new IllegalArgumentException(commandName + &quot;: find History Command&quot;);
    while (commandName.startsWith(&quot;!&quot;)){ //&#x5982;&#x679C;&#x5386;&#x53F2;&#x547D;&#x4EE4;&#x4E2D;&#x8FD8;&#x6709;&#xFF01;&#x5F00;&#x5934;&#x7684;
        commandName= getCommandName( term, commandName.substring(1)).trim();
    }
    //&#x6839;&#x636E;&#x5386;&#x53F2;&#x547D;&#x4EE4;&#x83B7;&#x53D6;&#x547D;&#x4EE4;&#x5BF9;&#x8C61;
    Command command = commandManager.getCommand(commandName);
    if (command != null) {
        //&#x4F20;&#x6559;&#x547D;&#x4EE4;&#x8FDB;&#x7A0B;
        return createCommandProcess(command, tokens, jobId, term);
    } else {
        throw new IllegalArgumentException(token.value() + &quot;: history command not found&quot;);
    }
}
</code></pre>

                                
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